Surface area: The USGS National Hydrography Dataset outline (NHD Permanent ID 52041643).
The red circle marks Lake Sinclair.
Towns and counties: U.S. Census Bureau boundaries overlaid on the USGS lake outline (Georgia: incorporated places touching the lake, otherwise the nearest one).
Official Georgia DNR pages. Rules and fees change; check before you go.
Built only from the data on this page: official access lists, OpenStreetMap beaches and trails, campground listings, state and USGS invasive-species records. We don't rate crowds or water quality.
Numbers on the map match the list at rightbelow.
Shoreline: USGS National Hydrography Dataset (NHD Waterbody, Permanent ID 52041643), public domain. State outline: U.S. Census Bureau TIGERweb. Points: Georgia DNR WRD water access points and OpenStreetMap boat ramps (ODbL). Dashed trails: © OpenStreetMap contributors (ODbL). Interactive map: Leaflet with © OpenStreetMap contributors. Not for navigation.
OpenStreetMap shows about 2.0 mi of public hiking and walking trail within about 100 m (330 ft) of the Lake Sinclair shoreline, mostly along the south and west shores.
No trailhead is mapped for these trails. The closest public access site is Sinclair Marina, right on a shoreline trail (Georgia DNR water access data).
The dashed brown line on the lake map shows these trails. We include paths, footways and marked trails that OpenStreetMap doesn't mark as private, and leave out roads, sidewalks and snowmobile corridors. Mapped trails can still cross private land or close for the season, and not every trail is mapped, so follow posted signs.
Trails: © OpenStreetMap contributors, available under the Open Database License (ODbL). Map data as of Oct 9, 2026. Trail lengths count only the parts within about 100 m of the USGS NHD lake outline.
We found 3 campgrounds and RV parks within 15 miles of Lake Sinclair. 2 are right on the shore. Distances are straight-line from the nearest point on the shoreline, so driving distance is longer.
RVs welcome
All campgrounds & RV parks in Georgia
Green tent icons on the lake map mark campgrounds near the shore, and the interactive map shows the closest 12. Amenities are listed only where a source records them; call or check the campground's website before you go, since seasons and rates change every year.
Campground data: OpenStreetMap contributors (ODbL). Pulled Oct 12, 2026.
Live from the National Weather Service API for the lake's coordinates (33.2450, -83.2557). The nearest station may be several miles away. NWS forecast for Lake Sinclair. No live water-temperature sensor is shown because we haven't found a public one for this lake.
Based on solunar theory, an estimate. Major periods (about 2 hours) center on when the moon is directly overhead or underfoot; minor periods (about 1 hour) center on moonrise and moonset. The 0–100 activity score rises during those periods and gets a boost near sunrise and sunset and around the new and full moon. Weather, water temperature and pressure often matter more. Sun and moon times are calculated in your browser from the lake's coordinates with standard astronomy formulas, shown in ET (America/New_York), and accurate to within a few minutes.
22 public access sites listed, 22 with a boat ramp or trailer launch.
| Site | Town | Owner | Type | Parking | Fee | Uses | Map |
|---|---|---|---|---|---|---|---|
| Bass Boat House | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.1448, -83.2261 |
| Boat ramp | — | — | Boat ramp (OpenStreetMap) · Yes ramp | — | — | Boating | 33.1435, -83.2421 |
| Boat ramp | — | — | Boat ramp (OpenStreetMap) · Yes ramp | — | — | Boating | 33.2842, -83.1909 |
| Boat ramp | — | — | Boat ramp (OpenStreetMap) · Yes ramp | — | — | Boating | 33.2763, -83.2501 |
| Cosbys Landing | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.1861, -83.2019 |
| Crooked Creek Marina | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.2555, -83.2586 |
| Dennis Station Access Area #1 | Milledgeville | — | Boat ramp · Yes ramp | — | No fee | Boating | 33.1885, -83.3166 |
| Dennis Station Access Area #2 | Milledgeville | — | Boat ramp · Yes ramp | — | No fee | Boating | 33.1864, -83.3155 |
| Greens Landing | Milledgeville | — | Boat ramp · Yes ramp | — | — | Boating | 33.1625, -83.3747 |
| Haslams Marina | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.1673, -83.3285 |
| Jere Shai Lakeside | Milledgeville | — | Boat ramp · Yes ramp | — | — | Boating | 33.1982, -83.2960 |
| Lake Side Bait and Tackle | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.1980, -83.2948 |
| Lake Sinclair Recreational Area | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.2074, -83.3961 |
| Little River Park Marina | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.1868, -83.2911 |
| Oconee Springs Park | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.2871, -83.1992 |
| Rocky Creek | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.1458, -83.1872 |
| Seabrook Road | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.1678, -83.1885 |
| Sinclair Marina | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.1812, -83.2750 |
| Sunset Marina and Inn | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.1958, -83.2936 |
| T D Cheek Public Fishing Area | Milledgeville | — | Boat ramp · Yes ramp | — | — | Boating | 33.1931, -83.2940 |
| Twin Bridges | Milledgeville | — | Boat ramp · Yes ramp | — | Fee | Boating | 33.2018, -83.3815 |
| Upper Sinclair (SR16) | Milledgeville | — | Boat ramp · Yes ramp | — | No fee | Boating | 33.3343, -83.1426 |
Georgia DNR WRD water access points and OpenStreetMap boat ramps (ODbL)
Fees, hours and rules change; confirm with the site owner before you go.
On OpenStreetMap: 1 beach or swimming spot on the shore of Lake Sinclair not marked private, residents-only or members-only.
| Beach | Type | Access | Directions |
|---|---|---|---|
| Rocky Creek Beach | Beach | Access not tagged; check posted rules | Get directions |
Beaches: © OpenStreetMap contributors (ODbL), within about 150 m (500 ft) of the lake outline. A mapped beach is not a guarantee that swimming is allowed, supervised or safe; some town beaches need a resident sticker even when the map doesn't say so. Check posted rules and water-quality advisories before you swim.
Reported on or near Lake Sinclair
USGS Nonindigenous Aquatic Species database
USGS records matched to this water by location (within about 150 m of the outline) or by the place name in the record. A record shows a sighting was reported; it doesn't prove the species is still there. As of Oct 10, 2026.
Lake Sinclair covers about 13,173 acres in Milledgeville, Georgia (Putnam County).
Yes. 22 public trailer launches are listed: Cosbys Landing, Dennis Station Access Area #1 and Dennis Station Access Area #2. Check posted fees and parking rules.
OpenStreetMap shows 1 public beach or swimming spot on the shore. None of our sources lists a lifeguard, so swim at your own risk and follow posted rules.
Yes. We list 3 campgrounds and RV parks within 15 miles.
Lake Sinclair touches Milledgeville in Putnam County, Baldwin County and Hancock County, Georgia.
Know Lake Sinclair? Tell us about the launch, parking, where they're biting or anything a first-time visitor should know. Tips go privately to the LakeRipple editor; nothing is posted automatically. Helpful tips may be featured on this page (we'll use your first name only if you give one).
Straight-line distance between lake centers. All Georgia lakes & ponds · All waters in Milledgeville